[krferriter]

Some weapons systems may be configured to automatically power on to a more ready (as opposed sitting in low power sleep mode) mode (not launch) when unknown objects appear on a sensor system. Whether this is a wise way to do things stands to be seen.

[etaoins]

Nuclear weapons do not have situational awareness. They’re intended to be used as part of a larger deployment system with a human in the loop. There’s no threat model for them that includes self-arming when mysterious aircraft approach their storage location.